7) Gamma decay: A nucleus in an excited state at 2.51 MeV can decay by emission of three y-rays as shown below. The transitions labelled 1, 2 and 3 are known to proceed via magnetic dipole, electric dipole and electric quadrupole transitions respectively. No other transitions to the ground state, of comparable intensities, are observed. Given that the ground state has a spin of (3/2)* what are the most probable spins and parities of these three excited states? ₁ V2. V/3 2:51 MeV 2.10 1.20 O

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7) Gamma decay: A nucleus in an excited state at 2.51 MeV can decay by emission of three y-rays
as shown below. The transitions labelled 1, 2 and 3 are known to proceed via magnetic dipole,
electric dipole and electric quadrupole transitions respectively. No other transitions to the ground
state, of comparable intensities, are observed. Given that the ground state has a spin of (3/2)+
what are the most probable spins and parities of these three excited states?
7/₁
1/2.
73
2:51 MeV
2.10
1.20
Transcribed Image Text:7) Gamma decay: A nucleus in an excited state at 2.51 MeV can decay by emission of three y-rays as shown below. The transitions labelled 1, 2 and 3 are known to proceed via magnetic dipole, electric dipole and electric quadrupole transitions respectively. No other transitions to the ground state, of comparable intensities, are observed. Given that the ground state has a spin of (3/2)+ what are the most probable spins and parities of these three excited states? 7/₁ 1/2. 73 2:51 MeV 2.10 1.20
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